Display panel, display device and vehicle

Abstract

Embodiments of the present application provide a display panel, a display device and a vehicle, the display panel comprising a first and a second type of pixels, a light-emitting viewing angle range of the second type of pixels being greater than that of the first type of pixels, the first type of pixels comprising a first sub-pixel, the second type of pixels comprising a second sub-pixel, the display panel further comprising: a substrate, the first type of pixels and the second type of pixels being provided on a side of the substrate; a dimming structure, at least partially provided on a side of the first type of pixels facing away from the substrate, an orthographic projection area of the second sub-pixel on the substrate is larger than that of the first sub-pixel, and a light extracting efficiency of the first sub-pixel is larger than that of the second sub-pixel.

What is claimed is: 
     
         1 . A display panel, comprising a first type of pixels and a second type of pixels, a light-emitting viewing angle range of the second type of pixels being greater than a light-emitting viewing angle range of the first type of pixels, the first type of pixels comprising a first sub-pixel of a first color, and the second type of pixels comprising a second sub-pixel of the first color, the display panel further comprising:
 a substrate, the first type of pixels and the second type of pixels being provided on a side of the substrate; 
 a dimming structure, disposed at least partially on a side of the first type of pixels facing away from the substrate, 
 wherein an orthographic projection area on the substrate of the second sub-pixel is larger than an orthographic projection area on the substrate of the first sub-pixel, and a light extracting efficiency of the first sub-pixel is larger than a light extracting efficiency of the second sub-pixel. 
 
     
     
         2 . The display panel according to  claim 1 , comprising:
 a pixel defining layer located on a side of the substrate, the pixel defining layer comprising a pixel defining part, and also a first pixel opening and a second pixel opening each enclosed by the pixel defining portion and spaced apart,   wherein the first sub-pixel comprises a first light-emitting portion located at the first pixel opening, and the second sub-pixel comprises a second light-emitting portion located at the second pixel opening, an orthographic projection area on the substrate of the second pixel opening being larger than an orthographic projection area on the substrate of the first pixel opening.   
     
     
         3 . The display panel according to  claim 1 , wherein the dimming structure comprises a filtering layer comprising a first filtering portion and a second filtering part, an orthographic projection on the substrate of the first filtering portion overlapping with an orthographic projection on the substrate of the first sub-pixel, an orthographic projection on the substrate of the second filtering portion overlapping with an orthographic projection on the substrate of the second sub-pixel, and
 a thickness of the first filtering portion being less than a thickness of the second filtering part.   
     
     
         4 . The display panel according to  claim 3 , wherein the first filtering portion is connected to the second filtering part, and the filtering layer has a first surface facing away from the substrate and a concave portion formed by recessing inward of the first surface, an orthographic projection on the substrate of the concave portion overlapping with the orthographic projection on the substrate of the first filtering part. 
     
     
         5 . The display panel according to  claim 3 , wherein the dimming structure further comprises a light shielding layer comprising a first light shielding opening and a second light shielding opening that are spaced apart, the first light filtering portion being disposed in the first light shielding opening, and the second light filtering portion being at least partially provided in the second light shielding opening; and
 the second filtering portion is provided to partially exceed a surface of the light shielding layer away from the substrate.   
     
     
         6 . The display panel according to  claim 5 , wherein a distance between an orthographic projection on the substrate of the second light shielding opening and that of the second sub-pixel is greater than a distance between an orthographic projection on the substrate of the first light shielding opening and that of the first sub-pixel. 
     
     
         7 . The display panel according to  claim 5 , wherein a refractive index of the filtering layer is greater than a refractive index of the light shielding layer. 
     
     
         8 . The display panel according to  claim 1 , wherein the dimming structure comprises a light-adjusting layer configured to change propagation directions of light rays emitted by the first sub-pixel and the second sub-pixel. 
     
     
         9 . The display panel according to  claim 8 , wherein the light-adjusting layer comprises a low-refractive index layer and a high-refractive index layer that are stacked, a refractive index of the high-refractive index layer being greater than a refractive index of the low-refractive index layer. 
     
     
         10 . The display panel according to  claim 9 , wherein the low-refractive index layer comprises a first low-refraction opening corresponding to the first sub-pixel and a second low-refraction opening corresponding to the second sub-pixel, the high-refractive index layer at least partially filling the first low-refraction opening and the second low-refraction opening. 
     
     
         11 . The display panel according to  claim 10 , wherein a distance between an orthographic projection on the substrate of the second low-refraction opening and that of the second sub-pixel is greater than a distance between an orthographic projection on the substrate of the first low-refraction opening and that of the first sub-pixel. 
     
     
         12 . The display panel according to  claim 11 , wherein a distance between the orthographic projection on the substrate of the first low-refraction opening and that of the first sub-pixel is L 1 , and a distance between the orthographic projection on the substrate of the second low-refraction opening and that of the second sub-pixel is L 2 , where L 1  and L 2  satisfy: 0≤L 1 ≤1 μm, 1 μm≤L 2 . 
     
     
         13 . The display panel according to  claim 10 , wherein the high-refractive index layer partially exceeds a surface of the low-refractive index layer away from the substrate, and the high-refractive index layer comprises a second surface which is a flat surface facing away from the substrate. 
     
     
         14 . The display panel according to  claim 9 , wherein the high-refractive index layer comprises a first high-refraction portion and a second high-refraction portion that are spaced apart, an orthographic projection on the substrate of the first high-refraction portion overlapping with that of the first sub-pixel, an orthographic projection on the substrate of the second high-refraction portion overlapping with that of the second sub-pixel, and the low-refractive index layer covering outer surfaces of the first high-refraction portion and the second high-refraction part. 
     
     
         15 . The display panel according to  claim 14 , wherein a distance between an orthographic projection on the substrate of an outer contour of the second high-refraction portion and that of an outer contour of the second sub-pixel is greater than a distance between an orthographic projection on the substrate of an outer contour of the first high-refraction portion and that of an outer contour of the first sub-pixel. 
     
     
         16 . The display panel according to  claim 14 , wherein the first high-refraction portion comprises a third surface facing away from the substrate, the low-refractive index layer fitting with the third surface, the third surface comprising an arc-shaped structure protruding in a direction away from the substrate. 
     
     
         17 . The display panel according to  claim 14 , wherein the first high-refraction portion comprises a first side surface and a second side surface opposite to each other in a first direction, the first side surface comprising an arc-shaped structure protruding in a direction away from the second side surface, the first direction being parallel to a plane where the substrate is located; and
 the low-refractive index layer fits with the first side surface.   
     
     
         18 . The display panel according to  claim 14 , wherein the low-refractive index layer partially exceeds the surfaces of the first high-refraction portion and the second high-refraction portion facing away from the substrate, and the low-refractive index layer comprises a fourth surface which is a flat surface facing away from the substrate. 
     
     
         19 . The display panel according to  claim 9 , wherein a material of the high-refractive index layer comprises at least one of zirconium oxide, hafnium oxide, tantalum oxide, niobium oxide, titanium oxide, yttrium oxide, silicon nitride, strontium titanate, tungsten oxide or chromium oxide;
 and/or, a material of the low-refractive index layer comprises at least one of quartz, fused quartz, fluorine-doped fused quartz, magnesium fluoride, calcium fluoride, aluminum fluoride or ytterbium fluoride.   
     
     
         20 . The display panel according to  claim 1 , wherein the first sub-pixel surrounds the second sub-pixel; or
 the first sub-pixel and the second sub-pixel are disposed side by side.   
     
     
         21 . The display panel according to  claim 1 , wherein the pixel of the first type comprises a first electrode, a first light-emitting portion and a second electrode that are stacked sequentially in a direction away from the substrate, and the pixel of the second type comprises a third electrode, a second light-emitting portion and a fourth electrode that are stacked sequentially in a direction away from the substrate,
 wherein the first electrode and the third electrode are disposed spaced apart, and/or, the second electrode and the fourth electrode are provided spaced apart.   
     
     
         22 . The display panel according to  claim 20 , wherein the display panel has at least a first working mode and a second working mode, and in the first working mode, the first type of pixels emit light and the second type of pixels do not emit light, and in the second working mode, both the first type of pixels and the second type of pixels emit light;
 and/or, the display panel has at least the first working mode and a third working mode, and in the third working mode, the first type of pixels do not emit light and the second type of pixels emit light.   
     
     
         23 . A display device, comprising a display panel, comprising a first type of pixels and a second type of pixels, a light-emitting viewing angle range of the second type of pixels being greater than a light-emitting viewing angle range of the first type of pixels, the first type of pixels comprising a first sub-pixel of a first color, and the second type of pixels comprising a second sub-pixel of the first color, the display panel further comprising:
 a substrate, the first type of pixels and the second type of pixels being provided on a side of the substrate;   a dimming structure, at least partially provided on a side of the first type of pixels facing away from the substrate,   wherein an orthographic projection area of the second sub-pixel on the substrate is larger than an orthographic projection area of the first sub-pixel on the substrate, and a light extracting efficiency of the first sub-pixel is larger than a light extracting efficiency of the second sub-pixel.   
     
     
         24 . A vehicle, comprising a display device comprising a display panel, which comprises a first type of pixels and a second type of pixels, a light-emitting viewing angle range of the second type of pixels being greater than a light-emitting viewing angle range of the first type of pixels, the first type of pixels comprising a first sub-pixel of a first color, and the second type of pixels comprising a second sub-pixel of the first color, the display panel further comprising:
 a substrate, the first type of pixels and the second type of pixels being provided on a side of the substrate;   a dimming structure, at least partially provided on a side of the first type of pixels facing away from the substrate,   wherein an orthographic projection area of the second sub-pixel on the substrate is larger than an orthographic projection area of the first sub-pixel on the substrate, and a light extracting efficiency of the first sub-pixel is larger than a light extracting efficiency of the second sub-pixel.